Hydraulic HONDA CR-V 1998 RD1-RD3 / 1.G Workshop Manual
[x] Cancel search | Manufacturer: HONDA, Model Year: 1998, Model line: CR-V, Model: HONDA CR-V 1998 RD1-RD3 / 1.GPages: 1395, PDF Size: 35.62 MB
Page 32 of 1395
Unit of length: mm (in)Automatic TransmissionSection 14
MEASUREMENTSTANDARO INEW}SERVICE LIMIT
TransmissionfluidCapacity I {US qt, lmp q0 4WD
2WD
6.8 (7.2, 6.0) for overhaul2.9 (3.1, 2.6) for fluid change5.9 {6.2, 5.2)for overhaul2.7 {2.9, 2.4}for fluid change
Hydraulicpressure
kPa
(kgflcm' , psi)
Line pressure at 2,000 rpm in LII or El position830 - 880 (8.5 - 9.0, 120 130)780 (8.0, 1' t0)
1sl clutch pressure at 2,000 rpm in Da position
1st-hold clutch pressure at 2,000 rpm In l position
2nd clutch pressure at 2,000 rpm in El position800 - 850 (8.2 4.7,120 1241760 t7.7, 1101
3rd clutch pressure at 2,000 rpm in E position ('97,'98 models), or E position with O/D OFF indicatorlight ON ('99,'00 models)
4th clutch pressure at 2,000 rpm in gl position ('97,'98 models), or E position with O/D OFF indicatorlight oFF ('99,'00 models)
Stall speed rpm (Check with vehicle on level ground)2,5502,400,2,700
Clutch initial clearance 1st2nd,3rd,4th'lst-hold
Clutch return spring free length 1st, 2nd, 3rd, 4th'1st-hold
Clutch disc thicknessClutch plate thickness 2nd, 3rd, 4th1st, 1st-hold
0.65 - 0.85 (0.026 -0.033)
0.40 - 0.60 (0.016 - 0.024)0.5 - 0.8 (0.020 - 0.031)31 .1 11 .22)34.6 (1.36)
1.88 - 2.00 (0.074 - 0.079)'r.95 - 2.05 {0.077 0.081)'1.55- 1.65 (0.061 - 0.065)
29.1 (1.15)
32.6 (r.28)
Until grooves worn outDiscolorationDiscoloration
Clutch end plate thickness Mark 1(lsti Mark 2Mark 3Mark 4Mark 5Mark 6Mark 7Mark 8Mark IMark 10
2.05 - 2.r0 (0.081 - 0.083)2.15 2.20 (0.085 - 0.08712.25 2.30 (0.089,0.091)
2.35 2.40 {0.093 - 0.094}2.45 - 2.50 {0.096- 0.098}2.55 - 2.60 (0.100 - 0.102)2.65 - 2.70 (0.104 - 0.106)2.75 2.80 i0.108 - 0.110)2.85 - 2.9010.r 12 0.114)2.95 - 3.0010.116 0.118)
Discoloration
Discoloration
Clutch end plate thickness Mark 6{2nd, 4th) Mark 7Mark 8Mark 9Mark 10Mark 11lvlark 12Mark 13Mark 14Mark 15Mark 16Mark 17
2.55 2.60 10.100 - 0.102)2.65 2.70(0.104,0.106)2.75 - 2.80 (0.108 0.110)2.85 - 2.90 (0.112 -0.rr4)
2.95 3.00 (0.116-0.118)
3.05 - 3.10 (0.120 - 0.122)3.15 3.20 (0.124-0.126)
3.25 - 3.30 (0.128 0.130)3.35 - 3.40 (0. r32 - 0.134)3.45 - 3.50 (0.136 - 0.138)3.55 3.60 (0.140 - 0.142)3.65 - 3.70 (0.144 - 0.146)
Discoloration
Discoloration
Clutch end plate thickness Mark 8
{3rdi Mark IMark 10Mark 11Mark 12Mark 13Mark 14Mark 15Mark 16Mark 17
2.75 - 2.80 (0.108 0.110)2.85- 2.90 (0.112 - 0.114)2.95 - 3.00 (0.116 - 0.1' j8)3.05 3.10 (0.120 - 0.122)3.15-3.20 {0.124 0.126)3.25 - 3.30 (0.128 - 0.r30)3.35 - 3.40 (0.132 - 0.r34i3.45 - 3.50 (0.136 - 0.138)3.55 - 3.60 {0.140 - 0.142)3.65 - 3.70 {0.144 - 0.r46)
Discoloration
Discoloration
Clutch end plate thickness Mark 1(1st hold) Mark 2Mark 3
No markMark 6Mark 7
2.05 2.10 (0.081 - 0.08312.r5 2.20 (0.085 - 0.087)2.25 - 2.30 {0.089 - 0.091}2.35 - 2.40 10.093 - 0.094i2.45 - 2.50 (0.096- 0.098i2.55 - 2.60 (0.r00 - 0.102)2.65 - 2.70 (0.r04 - 0.106)
(cont'd)
2-7
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Page 38 of 1395
--
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METRICITEMENGLISHNOTES
AIR CONDITIONINGCooling capacity3,520 Kcal/h j 14,000 BTU/h
Compressor Type/manutacturerNo. of cylinderCaPacityMax. speedLubricant capacityLubricant type
Scroll/KElHlN
85.7 mf/rev | 5.23 cu'in/rev10,000 rpm130mf 1 algIlozsP-10
Condenser TypeCorrugated fin
Evaporator TypeCorrugated fin
Blower TypeMotor inputSpeed controlMax. capacity
Sirocco fan200 w 112 v4-Speeo440 m3/h 15,500 cu fvh
Temperature control
Compressor clutch TypePower consumptionDry, single plate, poly-V-belt drive40 W max./12 VAt 68'F (20 C)
Befrigerant TypeOuantity
HFC-134a 1R-134a)zoo o' g 24j an oz
STEERING SYSTEMTypeOverall ratioTurns, lock to lockSteering wheel diameter
Power assisted, rack and pinion
SUSPENSIONType Front
Bear
Shock absorber Front and Rear
Independent double wishbone, coil springwith stabilizerIndependent double wishbone, coil springwith stabilizerTelescopic, hydraulic nitrogen gas tilled
WHEEL ALIGNMENTCamber
CasterTotaltoe
FronthearFrontFrontRear0inln 1/16 in0mmln2mm
0'- r"00'2.10'
BRAKE SYSTEMTvpe
Pad surface areaLining surface areaParking brake
Front
RearFrontRearTvpe
Power-assisted selt-ad,ustingventilated discPower assisted self-adiusting drum49 cm, x 2 7.6 sq-in x 273 cm, x2 11.3 sq-in x 2Mechanical actuating, rear two wheel brakes
Drum brake
TIRESize and pressureSee tire inlormation label.
ELECTRICALBafteryStarterAlternator
In under-dash fuse/relay boxIn under hood fuse/relay box
In underhood ABS fuse/relay boxHeadlightsFront turn signal lights
Front parking lightsFront side marker lightsRear side marker lightsRear turn signal lightsErake/parking lightsBack-up lightsCeiling lights {fronvrear)License plate lightSpotlightsHigh mount brake lightlgnition key lightAshtray lightGauge lightsIndicator lightslllLrmination and pilot IightsHeater illumination lights
12 V, 36 AH/s HR12V 1.0, 1.1 kW12V 100A
7.5 A, 10 A, 15 A, 20 A7.5 A, 10 A, 15 A, 20 A, 30 A, 40 A'100 A7.5 4,20 A. 40 A12V 60/55 W12 V- 21 W ('97 model),12 V - 27 W ('98-00 models)12V 5 W {'97 model),3 CP ('98 - 00 models)12V-8W12 V,3 CP12V-21W12 V 2115 W12V 21 CP (18 W)12V-8W12V-8W12V-5W12V -21W
12 V- 1.4 W12V 1.4 W12 V 1.4 W,3 W,3.4 W12V-0.84W, 1.12 W, 1.4 W,3 W, LED12 V - 0.84 W, 1.4 W, LED12 V,1.4 W
2-13
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Page 160 of 1395
Piston PinsConnecting Rods
Assemble the Piston Pin Tools as shown.
PISTON BASE HEAO07HAF -PL20102
PISTON BASE07973 - 6570500
Adjust the length A of the piston pin dflver.
A: 49.70 mm 11.957 in)
PIN DRIVER HEAIPE00320
\
RIr1
nT---
u
ffi-"""-
u_ll
3. Place the piston on the piston base, and press the
pin out with a hydraulic press. Make sure that the
recessed portion of the piston aligns with the lips
on the collar.
7-14
Removal
1.
PISTON07973 -
PISTON PIN BASE INSERT07GAF - PH60300
PISTON PIN DRIVER SHAFT07973 - PEt 0310
PILOT COLLAR07LAF - PR30100Embossod mark facing up.
Selection
Each rod falls into one of four tolerance ranges (from 0
to + 0.024 mm {0 to + 0.0009 in). in 0.006 mm (0.0002 in)
increments) depending on the size of its big end bore.
lt's then stamped with a number 1.1.2,3, or 4) indicating
the range.
You may find any combination ot 1,2,3, or 4 in any
engrne.
Normal Bore Size: ,18.0 mm (1.89 in)
Inspect the connecting rod for cracks and heat damage.
CONNECTING ROD BOREREFENENCE NUMBERHalf of number is stamped onbearing cap, the other half onconnectno roo.
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Page 161 of 1395
Piston Pins
lnstallation
The arrow must face thetiming belt side ot theengine and the connectingrod oil hole must face therear of the engine.
CONNECTING ROOotL Hor.E
1. Adjust the length B of the piston pin driver and shaft.
B: 49.70 mm (1.957 in)
PISTON PIN DRIVER SHAFT0t973 - P€qxtlo
Place the piston on the
pin in with a hydraulic
recessed portion of the
on the piston base head.
ffi*r,"ron'nl
PILOT COLLAROTLAF - PF3O1(x'
PISTON PIN BASE INSERT07GAF - PH6o3ttO
PISTON BASE HEADOTHAF - PL2O102
PISTON BASE07973 - 6670500
piston base and press the
press. Make sure that the
piston aligns with the lugs
7-15
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Page 430 of 1395
![HONDA CR-V 1998 RD1-RD3 / 1.G Workshop Manual
lllustrated Index
NOTE:
. Whenever the transmission is removed, clean and grease the release bearing sliding surface
.lfthepansmarked*areremoved,theclutchhydraulicsystemmustbebled(seepage1\
2-6).
. I](/img/13/5778/w960_5778-429.png "HONDA CR-V 1998 RD1-RD3 / 1.G Workshop Manual
lllustrated Index
NOTE:
. Whenever the transmission is removed, clean and grease the release bearing sliding surface
.lfthepansmarked*areremoved,theclutchhydraulicsystemmustbebled(seepage1\
2-6).
. I")
lllustrated Index
NOTE:
. Whenever the transmission is removed, clean and grease the release bearing sliding surface
.lfthepansmarked*areremoved,theclutchhydraulicsystemmustbebled(seepage1\
2-6).
. Inspect the hoses for damage. leaks. interference, and twisting.
LOCK PIN
*CLUTCH LINE19 N.m (1.9 kgj.m,14 tbtft)
8 x 1.25 mm13 N.m {1.3 kgf m,9.4lbtft)
PEDAL PIN.RESEFVOIR
HOSE
*RESERVOIR TANK
CLUTCH PEDALAdjustment, page 12-4*CI-UTCH MASTER CYLINDERFemoval/lnstallation, page 12-5
6x1.0mm9.8 N.m (1.0 kgf.m,7.2 tbf.ft)
*CLUTCH LINE15 N.m (1.5 kgt m,11 tbr.ft)
*CLUTCH LINE24 N.m {2.4 kgf.m,17 tbf.ft)
CLUTCH DISCRemoval/lnspection, page 1 2-8Installation, page 12,13
8 x 1.25 mm25 N.m {2.6 kgt m,19 rbf.ftt
I x 1.25 mm22 N.m 12.2 kgl'm, 16lbfft)
.o-.9r
WM\,".0--
ffi-P"8Nmlloks{m'
FLYWHEELInspection, page 12IRepiacement, page 12-9
12 x 1.0 mm103 N.m (10.5 kgtm,75.9 lbf ftl
PRESSURE PLATERemoval/lnspection, page'12-7
Installation, page'12 13
RELEASE BEARINGRemoval/lnspection, page 12-1'!Installation, page 12-12
*CLUTCH LINE15 N.m (1.5 kgt m,11 tbf.ft)
12-3
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Page 432 of 1395
Glutch Master Cylinder
Removal/lnstallation
CAUTION:
. Do not spill brake fluid on the vehicle; it may damage
the paint; if brake tluid does contact the paint. wash
it off immediately with water.
. Plug the end ol the clutch line and leservoir hose
with a shop towel to prevent brake tluid trom coming
out.
The brake fluid may be sucked out through the top
of the master cylinder reservoir with a syringe.
Disconnect the clutch line and reservoir hose from
the clutch master cylinder,
't.
9.8 N.m 11.0 kst m,7.2 tbf.ftl
CLUTCH LINE
19 N'm 11 9 kgJ m'
14 lbf.frl
Remove the reservoir from the engine compartment
bulkhead.
13 N.m t1.3 kgt.m,g.il lbtft)
4. Prv out the lock pin, and pull the pedal pin out of
the voke. Remove the nuts.
NUTSI x 1.25 mm
5, Remove the clutch master cylinder.
CLUTCH MASTERCYLINDEF
Install the clutch master cylinder in the reverse
order of removal.
NOTE: Bleed the clutch hydraulic system {see page
12-61.
12-5
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Page 433 of 1395
Slave Cylinder
RemovaUlnstallation
CAUTION:
. Do nol spill brake tluid on the vehicle; itmaydamage
the paint; if brake fluid do€s contast the paint, wash
it off immediately with water.. Plug the end of the clutch line with a shop towel toprevcnt brake tluid from coming out.
.6|l,Super High Temp Urea crease (p/N 08798 -
9002).
: Brake Assembly Lube or equivalent rubber
grease.
1. Disconnect the clutch line from the slave cvlinder.
2. Remove the slave cylinder from the clutch housing.
12-6
3. Install the slave cylinder in the reverse order ot
removal.
NOTEr Make sure the boot is installed on the slave
cylinder.
CLUTCH LINE15 N.m (i.S kgf.m, lt tbf.ftl
SLAVE CYLINDER
.-lG(P/N 08798 - 90021
E x 1.25 mm22 N.m (2.2 kgt.m,16 tbtft)
(Brake AssemblyLube)
Bleed the clutch hydraulic system.
Attach a hose to the bleeder screw, and suspend
the hose in a container of brake fluid.
Make sure there is an adequate supply of fluid at
the clutch master cylinder, then slowly pump the
clutch pedal until no more bubbles appear at the
bleeder hose.
Refill the clutch master cylinder with fluid whenqone.
Always use Genuine Honda DOT3 Brake Fluid.
Using a non Honda brake fluid can cause corro-
sion and decrease the life of the system.
Confirm clutch operation, and check for leaking
fluid.
7.8 N.m (0.8 kgf.m. 5.8 lbt.ft)BLEEDER SCREW
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Page 517 of 1395
Automatic Transmission
Special Tools . 14'2OescriptionGeneral Operation . .... 14 3Power Flow . . .. '14_6
Electronic Control System .. .. . . .. .14_15Hydraulic Control .. 14 24Hydraulic Flow....-....... .. . .... .. .. . 14_29Lock'up Syslem .. .'t4'39Electrical SystemComponenl Locdlrons 14 45
PCM Circuil Dragram (A/T Control Svstem)'97 Model ....................... . . .. - . ... .14-46'98Model ................. . ... .. .. .1450'99 00Models.... . .... . . . 1452
PCM Terminal Voltage/Measuring ConditionsA"/T Control System-'97Model ...... ..14'48A,/T Control System -'98 00 Models . . .. . . 14 54
Troubleshooting Procedures .. ..... ... - 14_56Svmotom to comoonent CharlEiectr,cal Syslem -'97 Model . . 14 60Electrical System -'98 - OO Models . .. . . 14_62Electrical Troubleshooting ('97 Model)Troubleshooting Flowaharts .... ..... . .. . . 14_64
Electrical Troubleshooting ('98 - 00 Models)Troubleshootinq Flowclt"n" .... . ....- . .14-93ElectricalTroublesliooting('99 00Models)Troubleshootino FlowchartO/D OFF Indicator Light Does Not Come On 14 131
O/D OFF Indicator Liaht On ConstantlY . . . .1!-132O/D OFF Indicator Light Does Not Come OnEven Though O/D Switch ls Pressed . .... - 14_133
Lock up Control Solenoid Valve A,/B AssemblyTest....................-......... . .14-135Replacement . .ll_135Shifr ControlSolenoid Valve Ay'B Assembl,Test .............................. . .. 14-136
Replacement..............- . .14'136Linear Solenoid AssemblYTest.............................................. .. .... . 14_137Replacement .. . 14138Marnshaftlcountershafl Speed SensorsReplacement ...-... 14_138A/T Gear Position SwitchTest ..........................-... . .. 14-139ReplacementA/T Gear Positionlndicator.................. 14-140
Valve Eodynepair ............................... ..... . . .. - . .. ... 14 192
Assembly .................... .. 1{_193
Valve CapsDesciiption....-........................ .. ...... 14194
tnspeition ................... .. 14' 195
N4ain Valve BodyDisassembly/lnspection/Reassemblv - ...... .. 14_196
Secondarv Valve BodYDisassemblv4nspectron/ReassemblY .. . 14 198
Reoulator Valve Bodvbisassembtv,lnspiction/Reassemblv . 14199
Servo EodvDisassembly/lnspection/Reassembly ... ....14'200
Lock'uo Valve BodYDis;ssembly/lnspection/Reassembly .... . 14_201
MainshaftDisassembly/lnspection/Reassembly .. .. .. ..14'202
Inspection ....-.............. ..11_203
Sealing RingsReilaceient ...... ..... . 14'204
CountershaftDisassembly/lnspection/Reassembly .. . . . . . 11-205
Disassembly/Reassemb|y . . ........ ...... . .. 14_206Inspedron ................ . .... . 14 207
One wav ClutchDisassembly/lnspection/ReassemblY ... 11_209
Sub-shaftDisassembly/lnspection/Reassembly ... . .. . 14-210
oisassembly/Re6ssembly . . ... .-...... . . ..14-211
Sub-shaft BearingsReplacement .......14'212
Clutchllfustrated Index .......... . . .14-213
Disassembly .... .. .....14-216Reassembfy .... . .. .. . 14'218
Differentialllfustrated Index " 14-222Backlash Inspection . .... . .14'223
Bearing Repiacement .. 11-223
Differe-ntial Carrier Replacement .. .. . . . .. ..11-2?4
OifSeal Replacement. . .. 14'225
Side Clearance lnspection . . - .. ... . - ...... . .. 11'226
Transmission Housing BearingsMainshaJVCountershaft EearingsRepfacement .......14221Sub'siralt Eearing Replacement . . . . . . . . . ..11'224
Toroue Converter Housing BearingsMainshattEearing/OilSe6lReplacement . .. l4229
Countershaft Bea;ing Replacement.. .... .. ..14-230
Input Test - '97 - 98 ModelsInput Test '99 - 00 Models
Symptom to-Component ChartHydraulic System ...............
Checking
Removal ...,lllustrated Index (4WD)
Interlock SystemInterlock ControlUnit lnputTest. -..... -.. .... . - 14 144* Key Interlock Solenoid Test .- .. . . . - . . . ..... 14_146* Shift Lock Solenoid Test ..............-.-. . .. . ... .... 14 147*Shift LockSolenoidReplacement...... .. . .. .. 14 148* park pin Switch Test ......... 14 119' Park Pin Switch Replacement- '97 - 98 Models ....... 14-150* Park Pin Swirch/Over Drive (O/Di SwitchReplacemenl '99-00Models . .. 14_151over-Drive (O/D) Switch {'99 00 [4odels]Test........_..................... .......14-152Hydr.ulic System
..............._............... t4 142.................................. 14-143
Control Lever AssemblyR6placement ......,.,Reverse ldler Gear
lllustrated lndex
.......... 14-230
14 231
11-231
1nsta1|ation ..................Park StopInspeclion/AdjustmenlTransfer AssemblY.......14.232
RoadTest.............-.... ........ .StallSpeedTest ....._........................ ....... 14-159Fluid Level......_................... 14'160
Disessembly .................... 14-235Transfer Drive Gear BearingReplacementTrans{er Driven Gesf Shaft BearingReplacementTransfer Housing Roller BearingReplacementTransfer Cov€r A Bearing Outer RaceReplacementTransfer Housing Bearing Outer RaceReplacement ......-..,,,,,.....ReassemblvTransmassaonBeassembly ... -.. .... .14 250
Torque Converier/Drive Plate . .-. .... .. . ... .....14_258
Transmissionlnstatlation .................. ....... 14'259
Cooler Flushing . . ......11-261ATF Cooler HosesConnection.................. ....... 14-266I Shift LeverRemoval/lnstallation . .. 14'261
Disassemblv/Reassemblv - '97 - 98 Models . . 14_264
Disassembli/Reassemblv -'99 - 00 Models . 14-269
Over'Orive (O/D) Switch WireClearanceAdjustment. - ... . . . .. .. . 14'270
Detent Spring Replscement . . -.. ... .14'271*Shift CableAdiustment ....... 14'272
Repfacement.............. . 11'273
14 15711-237
11-237
14-238
$-234
11-23914-240
Transmigrion
Inspeclron ....., ...........Transfer AssemblyRemova1,.,,,..............,lnstallalion ........... .. ...Transmission
14 164
14-16514,167
14-169
End Cover/Transmissio . 14'174Transmission Housing .... ... .. . . .... .. 14-176Torque Converter Housingly'alve Body.. - ... -. 14 178
lllustrated lndex (2WD)End Cover/Transmissio ....... 14 180Transmission Housing . . ... . .. .... ... 14'182Torque Convener Housing/r'alve Body ......- 14-184
End CovefRemovat ...................... ....... 14'186Transmission HousingRemoval ...................... .. 14_188Torque Convener HousingA/alve BodYRemovat ................-..... .-..... 14-190
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Page 519 of 1395
Description
General Operation
The Automatic transmission is a 3-element torque converter and triple-shaft electronically controlled unit which provides 4
speeds forward and 1 reverse speed The unit is positioned in line with the engine'
There are two tvoes of automatic transmission on CR-V; the four-wheel drive (4WD) model ('97 - 00)' and the front-wheel
drive (2WD) model ('98 - 00).
Toroue Converter, G€ars, and Clutches
The torque converter consists of a pump. turbine. and stator assembly in a single unit. The torque converter is connected to
the engine crankshatt. These parts turn together as a unit as the engine turns. Around the outside of the torque converter is
a ring gear which meshes with the starter pinion when the engine is started. The torque converter assembly serves as a fly-
wheel while transmitting power to the transmission mainshaft.
The transmission has three parallel shafts: the mainshaft. the countershaft, and the sub-shaft. The mainshaft is in line with
the engine crankshaft. The mainshaft includes the 1st, 2nd. and 4th clutches, and gears lor 3rd,2nd,4th. reverse and 1st
(3rd gear is integral with the mainshaft, while reverse gear is integral with the 4th gear). The countershaft includes the 3rd
clutch and gears for 3rd,2nd, 4th, reverse, 1st, and park. Reverse and 4th gears can be locked to the countershaft at its cen-
ter, providing 4th gear or reverse, depending on which way the selector is moved. The sub-shaft includes the lst-hold
clutch and gears for lst and 4th.
The gears on the mainshaft are in constant mesh with those on the countershaft and sub-shaft. When certain combinations
of gears are engaged by the ctutches, power is transmitted from the mainshaft to the countershaft to provide E, D!, tr, tr,
and E position ('97 - 98 models). and E. E, E, and E position ('99 - 00 models)'
Electlonic Control
The electronic controt system consists of the Powenrain Control Module (PCM), sensors, a linear solenoid, and four
solenoid valves. Shifting and lock-up are electronically controlled for comfortable driving under all conditions. The PCM is
located below the dashboard, under the kick panel on the passenger's side.
Hydraulic Control
The valve bodies include the main valve body, the secondary valve body, the regulator valve body, the servo body, and
the lock up valve body. They are bolted to the torque converter housing. The main valve body contains the manual valve,
the 1-2 shift valve, the 2nd orifice control valve. the CPB {Clutch Pressure Back-up) valve, the modulator valve, the servo
control valve. the relief valve, and ATF pump gears. The secondary valve body contains the 2-3 shift valve, the 3-4 shift
valve, the 3,4 orifice control valve. the 4th exhaust valve and the CPC (Clutch Pressure Control) valve. The regulator valve
bodv contains the pressure regulator valve, the torque converter check valve, the cooler relief valve, and the lock-up con-
trol valve. The servo body contains the servo valve which is integrated with the reverse shift tork, and the accumulators
The lock-up valve body contains the lock-up shift valve and the lock-up timing valve. The linear solenoid and the shift con-
trol solenoid valve Ay'B are bolted to the outside of the transmission housing, and the lock-up control solenoid valve Ay'B is
bolted to the outside of the torque converter housing. Fluid trom the regulator passes through the manual valve to the
various control valves. The clutches receive fluid from their respective feed pipes or internal hydraulic circuit
ShiftControl Mechanism
input from various sensors located throughout the vehicle determines which shift control solenoid valve the PCM will acti-
vate. Activating a shift control solenoid valve changes modulator pressure, causing a shift valve to move. This pressurizes
a line to one of the clutches. engaging that clutch and its corresponding gear. The shift control solenoid valves A and B are
controlled by the PCM.
Lock-up Mechanism
tn E! position (,97 - 98 modets) and in E position ('99 - O0 models), in 3rd and 4th, and in Del position in 3rd ('97 - 98
models) and in El position with Over,Drive (O/D) is OFF (by pressing rhe O/D switchl in 3rd ('99 - 00 models), pressurized
fluid is drained from the back of the torque converter through a fluid passage, causing the lock-up piston to be held
against the torque converter cover, As this takes place, the mainshaft rotates at the same speed as the engine crankshaft.
Together with hydraulic control, the PcM optimizes the timing of the lock-up mechanism The lock-up valves control the
range of lock-up according to lock-up control solenoid valves A and B, and the linear solenoid. When lock-up control
solenoid valves A and B activate, the modulator pressure changes. The lock-up control solenoid valves A and B and the
linear solenoid are controlled by the PCM.
{cont'd)
14-3
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Page 520 of 1395
Description
General Operation (cont'dl
Gsar Selection'97 - 98 Models
The shift lever has seven positions; El PARK, ts REVERSE, N NEUTRAL, Ell 1st through 4th ranges, lpq 1st th.ough 3rdranges, P 2nd gear, and [ 1st gear
'99 - 00 Models
The shitt lever has six positions; El PARK, E REVERSE, E NEUTRAL. E ,lst through 4th ranges, and 1st through 3rd(when Over-Drive (O/D) is OFF) ranges. @ 2nd gear, and E 1st gear.
Starting is possible only in @ and @ positions. using a slide-type. neutral-safety switch.
Automatic Transaxle (A/T) Gear Position IndicatorThis indicator in the instrument panel shows which gear has been selected.
Transler Mochanism {4WD}
The transfer mechanism consists of the transfer shaft drive gear. the transfer shaft. the transfer drive gear, the transfer driv-en gear shaft, and the companion flange, The transfer mechanism assembly is on the rear side ot the transmission. besidethe differential. The transfer shaft drive gear on the final driven gear drives the transfer shaft driven qear. power is transmit-ted to the rear differential via the transfer shaft and the Drooeller shaft.
Clutches
The four-speed automatic transmission uses hydraulically-actuated clutches to engage or disengage the transmission gears.When the hydraulic pressure is introduced into the clutch drum, the clutch piston moves. This presses the friction discs andsteel plates together, locking them so they don't slip. Power is then transmifted through the engaged clutch pack to its hu$mounted gear. When hydraulic pressure is bled from the clutch pack, the piston releases the friction discs and steel plates, andthey are free to slide past each other. This allows the gearto spin independently on its shaft, transmitting no power.
lst Clutch
The 1st clutch engages/disengages lst gear, and is located at the end ofthe mainshaft, just behind the end cover.The 1st clutch is supplied hydraulic pressure by its ATF feed pipe within the mainshaft.
lst-hold Clutch
The 1st-hold clutch engages/disengages 1st-hold or E position, and is located at the middle of the sub-shaft. The 1st-holdclutch is supplied hydraulic pressure by its ATF feed pipe within the sub-shaft.
2nd Clutch
The znd ciutch engages/disengages 2nd gear, and is located at the middle of the mainshaft. The 2nd clutch is joined back-to-back to the 4th clutch. The 2nd clutch is supplied hydraulic pressure through the mainshaft by a circuit connected to theinternal hydraulic circuit.
PositionDescription
Reverse; reverse selector engaged with countershaft reverse gear and 4th clutch locked.
Allclutches released.
General driving; starts off in 1st, shifts automatically to 2nd, 3rd, then 4th, depending on vehicle speedand throftle position. Downshifts through 3rd,2nd, and lst on deceleration to stop.The lock-up mechanism operates;n 3rd and 4th gear.
used for rapid €cceleration at highway speeds and general driving; stans off in 1st, shifts automatically to2nd_then 3rd, dejending on vehicle speed and throttle position. Downshifts through lower gears on decel-eration to stop. The lock-up mechanism comes into operation in 3rd gear.
Driving in 2nd_gear; stays in 2nd gear, does not shift up and down. For engine braking or better trac_tion starting off on loose or slippery surfaces.
Driving in 1st gear; stays in 1st gear, does not shift up. For engine braking.
tll PARK
t!!l l|EvEn>E
E NEUTRAL
Ell DRrvE ('97 - sB)E DRrvE ('ss - oo)(1st through 4th )
E DRrvE {'97 - s8)O DRTVE with over-Drive (O/D) is OFF('99 - 00)(1st through 3rd)
E SECOND
E FIRST
14-4
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